Finite Group Databasebeta
Cayley diagram

C22×#390 #34019

order256
nilpotency class2
isoclinismisoclinic class of #120
automorphismAut(G) order 50331648
homologyAbelianization (H1) = C24×C4 · Schur multiplier (H2) = C210×C4

Aliases

direct productC22×#390

Subgroups

subgroupG/H
center, socleC25C23
commutatorC22C24×C4
Frattini, cosocleC23C25
prime radicalC24×D4C2
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C25 ◁ G
LECSG ▷ C23 ▷ C1

4767 conjugacy classes of subgroups; only the 1375 normal subgroups are shown.

normal subgroups only

This group has 4767 conjugacy classes of subgroups — too many to draw. Only its 1375 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 16
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 5 generators on 16 points:

(3,4);(1,2)(3,4);(6,8)(10,11)(13,14,16,15);(9,10,12,11)(13,15,16,14);(5,6,7,8)(9,11,12,10)

Conjugacy classes & character table

112 conjugacy classes — view the full character table.

Relationships

Frattini subgroup of#72266398, #72266424
Fitting subgroup ofA4×#390
maximal subgroup of#96910, #97078, #106134, …
maximal normal subgroup of#96910, #97078, #106134, …
maximal quotient ofC22×C4⋊#95, C22×#1437, C2×C4×#390, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27007);